Enigmatic songwriter and singer Sia has filed for divorce after a 2½-year marriage.

The performer (whose real name is Sia Furler) married documentary filmmaker Erik Anders Lang in August 2014 after a two-month engagement. But they announced their separation earlier this month, saying they were “dedicated to remaining friends.”

The “Chandelier” singer cited irreconcilable differences in her petition to end her marriage, which was filed Dec. 20 in Los Angeles Superior Court. The former couple has no children together and has a prenuptial agreement.

As well as performing her own songs, Sia, 41, has written hits for Rihanna and Flo Rida, among others.